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Sierra Marine
Sierra Thermostat - Mercruiser - S18-3553
Sierra Thermostat - Mercruiser - S18-3553. Replaces: 62981, 66850, 75692 143° Part Number SRA-S18-3553
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Sierra Marine
Sierra Thermostat - Mercruiser - S18-3557
Sierra Thermostat - Mercruiser - S18-3557. Replaces: 47594 143° Part Number SRA-S18-3557
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Sierra Marine
Sierra Thermostat - Mercruiser - S18-3551
Sierra Thermostat - Mercruiser - S18-3551. Replaces: 32728, 35884, 59137, 59137A1, 8072521, 8072531, 807252T1, 8M0089715 142° Part Number SRA-S18-3551
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Sierra Marine
Sierra Thermostat - Mercruiser - S18-3555
Sierra Thermostat - Mercruiser - S18-3555. Replaces: 99155T1 Part Number SRA-S18-3555
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Sierra Marine
Sierra Thermostat - Mercruiser - S18-3550
Sierra Thermostat - Mercruiser - S18-3550. Replaces: 59078, 59078A1 140° Part Number SRA-S18-3550
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Sierra Marine
Sierra Thermostat - Mercruiser - S18-3568
Sierra Thermostat - Mercruiser - S18-3568. Replaces: 99155T1 Model Year Serial # 5.7MIE 1998-2001 OL002003 & Up MX6.2LMPI 2000-2001 OL680003 & Up 454 Horizon MIE 1998-2001 OL002200...
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Sierra Marine
Sierra Thermostat - Mercruiser - S18-3552
Sierra Thermostat - Mercruiser - S18-3552. Replaces: 76270, 76270T 160° Part Number SRA-S18-3552
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Sierra Marine
Sierra Impeller Repair Kit - Mercruiser - S18-3237
Sierra Impeller Repair Kit - Mercruiser - S18-3237. For: Bravo I, II, III (1988 & up) B664190 & up Fits Bravo drives with 1 piece housing Contains: Sierra CodeDescriptionO.E #Qty S18-3087 Impeller 47-59362 1 S18-3350 Wear...
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Sierra Marine
Sierra Impeller - Mercruiser - S18-3087
Sierra Impeller - Mercruiser - S18-3087. Replaces: 47-59362, 47-59362T Part Number SRA-S18-3087
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Sierra Marine
Sierra Manifold - Mercruiser - S18-1954-1
Sierra Manifold - Mercruiser - S18-1954-1. Supplied with Mounting Package Replaces: Mercruiser 95862A5 Marine Power 0993-000, Barr MC 1 95862 Fits: Most late Model 2.5L 153 CID & 3.0L 181 CID with Rochester Carb 5 Bolt Pattern (1983-89) Use...
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Sierra Marine
Sierra Manifold - Mercruiser - S18-1955-1
Sierra Manifold - Mercruiser - S18-1955-1. Supplied with Mounting Package Replaces: Mercruiser 95862A5 Marine Power 0993-000, Barr MC 1 95862 Fits: Most late Model 2.5L 153 CID & 3.0L 181 CID with Rochester Carb 5 Bolt Pattern (1983-89) Use...
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Sierra Marine
Sierra Manifold - Mercruiser - S18-1956-3
Sierra Manifold - Mercruiser - S18-1956-3. Supplied with Mounting Package Replaces: Mercruiser 860235A04, 99798A3, 99798A9, 99798A16, 99798A18, 806867A8 Marine Power 600333 Barr MC 1 99798 Fits: 2.5 & 3.0L (1983-89) Part...
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Sierra Marine
Sierra Manifold - Mercruiser - S18-1966-1
Sierra Manifold - Mercruiser - S18-1966-1. Replaces: 806867A2, 806867A3, 806867A8, 806867A9, 806867A12, 816329A3, 860235A03, 99798A18 Fits: 3.0L/LX (1990 & Newer); Marine Power Engine Model E181S Part Number SRA-S18-1966-1
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Sierra Marine
Sierra Manifold - Mercruiser - S18-1960-1
Sierra Manifold - Mercruiser - S18-1960-1. Replaces: 58759A10, A14, 58759A13, 58759A1, 52969A1, 52073A1 Barr MC 1 58759 Fits: Most Mercruiser (GM) Inline 6 Cyl. Engines Supplied with Mounting Package Use with: Mounting Kit:...
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Sierra Marine
Sierra Manifold - Mercruiser - S18-1953-2
Sierra Manifold - Mercruiser - S18-1953-2. Port & Starboard. Supplied with Mounting Package Replaces: Mercruiser 87114A19, 86024A10, 860246A15, 860246A3, 860246A7, 860246A9, 860336A2, 860337A2, 87114A19, 87114A30 Marine Power 0994-100, Barr...
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Sierra Marine
Sierra Manifold - Mercruiser - S18-1952-1
Sierra Manifold - Mercruiser - S18-1952-1. Port & Starboard Replaces: Mercruiser 99746A8, A17 Marine Power 611447, Barr MC-1-99746 Fits: Most 4.3L (262 CID) V-6 application Supplied with Mounting Package Use with: Mounting Kit:...
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Sierra Marine
Sierra Manifold - Mercruiser - S18-1957-2
Sierra Manifold - Mercruiser - S18-1957-2. Port & Starboard. Replaces: Mercruiser 89011A8, 807078A6, 807078T10, 80707809, 807078A4, 807078A2 Marine Power 0991-1000, Barr MC-1-89011 Will fit either side Fits: Most Mercruiser (GM) V-8 big blocks...
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Sierra Marine
Sierra V6 Dry Joint Exhaust Manifold - Mercruiser - S18-1842
Sierra V6 Dry Joint Exhaust Manifold - Mercruiser - S18-1842. Replaces: 864612T01 Fits: 4.3L Alpha/Bravo (2002 and Newer without Engine Catalyst) Use with: Dry Joint Elbow Gaskets: S18-0720, S18-0721 or S18-0722 Part...
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Sierra Marine
Sierra Exhaust Manifold (Dry Joint) - Mercruiser - S18-1843
Sierra Exhaust Manifold (Dry Joint) - Mercruiser - S18-1843. Replaces: 865735A02, 865049T01, 864308T01 Fits: 305, 350, 377, 5.0L, 5.7L, 6.2L(2002 and Newer) Use with: Manifold Gasket: S18-2949 Elbow Gaskets: S18-0720, S18-0721 or S18-0722 Elbow:...
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Sierra Marine
Sierra Elbow - Mercruiser - S18-1970-2
Sierra Elbow - Mercruiser - S18-1970-2. Replaces: Mercruiser 98504A3, 98503A2, 95755A2 Marine Power 0992-115, Barr MC-20-98504 Fits: V-6 & V-8 applications, 15° (3” O.D. Riser) Comes with S18-0897 & brass plugs Use...
Motors & Parts - Inboard & Outboard
Inboard and outboard motors are the two main types of boat motors.
Inboard motors are located inside the hull of the boat. They are typically more powerful than outboard motors, and they can provide a smoother ride. However, they are also more expensive and more difficult to maintain.
The main parts of an inboard motor are:
- The engine: This is the heart of the motor, and it is responsible for generating power.
- The transmission: This transfers power from the engine to the propeller.
- The propeller: This is what actually moves the boat through the water.
Outboard motors are located outside of the hull of the boat. They are typically less powerful than inboard motors, but they are also less expensive and easier to maintain.
The main parts of an outboard motor are:
- The powerhead: This is the engine and transmission of the motor.
- The midsection: This houses the controls and the fuel tank.
- The lower unit: This contains the propeller and the gearcase.
In addition to the main parts, there are a number of other parts that are used in both inboard and outboard motors. These include:
- The fuel system: This delivers fuel to the engine.
- The cooling system: This keeps the engine cool.
- The electrical system: This provides power to the engine and the other components of the boat.
The parts of a boat motor can be quite complex, but they are all essential for the operation of the boat. By understanding the different parts of a boat motor, you can better understand how your boat works and how to maintain it properly.
Here are some of the most common parts of an inboard or outboard motor:
- Engine: The engine is the heart of the motor, and it is responsible for generating power.
- Propeller: The propeller is what actually moves the boat through the water.
- Gearbox: The gearbox transfers power from the engine to the propeller.
- Fuel system: The fuel system delivers fuel to the engine.
- Cooling system: The cooling system keeps the engine cool.
- Electrical system: The electrical system provides power to the engine and the other components of the boat.
These are just some of the most common parts of an inboard or outboard motor. There are many other parts that can be found in these motors, depending on the make and model of the motor.